Laser staked two-piece drive shaft for a starter motor

摘要

A drive shaft assembly for an electromechanical apparatus is disclosed that possesses increased and long-lasting torque strength. The drive shaft assembly comprises a drive shaft that is inserted into an aperture in a plate via a cold staking process such that the outer surface of the drive shaft is in contact with an inner edge of the plate to form a frictional engagement. The drive shaft is then joined to the inner edge of the plate by laser welding, which serves to produce a rigid connection.